X11 is a technology platform tracked by ThreatCluster, appearing in 6 threat clusters built from 5 intelligence report mentions.
X11 is a technology platform tracked across 6 threat clusters and 5 intelligence report mentions on ThreatCluster. First observed November 18, 2025; most recent activity July 14, 2026.
A critical vulnerability in OpenSSH has been identified, affecting Ubuntu systems, particularly version 16.04. The flaw arises from improper handling of file permissions when downloading files as root using the legacy…
Security researchers have identified ClipXDaemon, a new malware strain targeting cryptocurrency users on Linux systems. This stealthy clipboard hijacker manipulates copied wallet addresses and is delivered through a…
A critical command injection vulnerability has been identified in FVWM3, a window manager for X11, affecting Fedora versions 41, 42, and 43. The vulnerability has been addressed with an update to FVWM3 version 1.1.4,…
Fedora has released crucial patches for the Fvwm3 window manager to address CVE-2025-65637, a denial-of-service vulnerability. Users of Fedora 42 and 43 are affected, and the updates aim to mitigate potential…
On July 13, 2026, three new versions of OpenSSH were released, specifically 1:10.2p1-2ubuntu3.4, 1:8.9p1-3ubuntu0.16, and 1:9.6p1-3ubuntu13.18. These updates include various security features and enhancements for the…
Fedora has released critical updates for the FVWM3 window manager to address a command injection vulnerability identified as CVE-2025. The updates affect multiple Fedora versions, including 41 and 42, with the latest…
X11 is a technology platform tracked by ThreatCluster, appearing in 6 threat clusters built from 5 intelligence report mentions.
The most recent intelligence report mentioning X11 on ThreatCluster is dated July 14, 2026. Activity was first observed November 18, 2025, giving a tracked span from then to July 14, 2026.
Across ThreatCluster reporting, X11 most frequently co-occurs with DDoS, Denial-of-Service, Malware, bc1qe8g2rgac5rssdf5jxcyytrs769359ltle3ekle, Fedora, among 12 tracked related entities.
The most significant recent cluster is “Critical OpenSSH Vulnerability Allows Privilege Escalation on Ubuntu Systems” (4 articles · Updated July 6, 2026). X11 appears across 6 threat clusters in total, listed above with sources.
X11 appears in 5 intelligence report mentions across 6 deduplicated threat clusters, aggregated from 17,000+ monitored sources.